TY  - GEN
AU  - Donovan,Lucas M
AU  - Bertisch,Suzanne M
AU  - Patel,Sanjay R
TI  - Defining Exposure and Nonexposure in Observational Studies of Sleep Apnea Treatment
SN  - 2168-619X
PY  - 2019///
PB  - JAMA otolaryngology-- head & neck surgery
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1001/jamaoto.2019.1880
ER  -